QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000d7g
USGS usp0000d7g
21 Oct 1975, 12:59
Novaya Zemlya, Russia
A magnitude 6.5 mb earthquake at 0 km depth.
Published location
Where is Novaya Zemlya, Russia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
73.351000, 55.078000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp0000d7g
Coordinates
73.351, 55.078
Network
us
Significance
650